Muller



May 23, 1933. R. H. MCELROY Er AL MULLER Filed July 2.3, 1930 18 Sheets-Sheet l BY my om ATTORNEYS May 23, 1933. R H. McELRoY Er AL 1,910,028

MULLER Filed July 25 ATTORN EYS May 23, 1933.

R. H. MGELROY l-:r Al. 1,910,028

MULLER Filed July 23, 1930 18 Sheets-Sheet 3 ATTORNEYS May 23, 1933.

R. H. MCELROY El AL MULLER 1930 18 Sheets-Sheet 4 Filed July 23 May 23, 1933. R. H. MCELROY Er AL 1,910,928

MULLER Filed July 23, 1930 18 Sheets-Sheet 5 .Fjq. 5.

ATTORNEYS May 23, 1933.

R. H. MCELROY Er Al. 1,910,028 f MULLER Filed Julyl 25, 195o 1e sheets-sheet 6 .Z'TLZG. 4/. /s 7 f Bygzfmm. 20 9 I ATTORNEYS May 23, 1933- R. H. MoELRoY Er AL. 1,910,028

MULLER Filed July 23, 1930v 18 Sheets-Sheet 7 FZQ. 6.

ATTORNEYS May 23, 1933. R. H. MCELROY n AL 1,910,028

MULLER Filed July 23, 1930 18 Sheets-Sheet 8 ATTORNEYS May 23, 1933. R. H. MCELROY Er Al. 1,910,028

MULLER Filed July 25, 1930 18 Sheets-Sheet 9 8 l'lq. /Q "2 l O OI 20.02

e 6 3030 O)O U vU U ATTORNEYS May 23, 1933. R. H. MCELROY Er AL 1,910,028 v MULLER Filed July 25, 1950 18 Sheets-Sheet 10 BY u ATTORN EYS May 23, 1933- R. H. MCELROY Er AL 1,910,028

MULLER Filed July 23, 1930 18 Sheets-Sheet ll E MWMJ ATTORN EYS May 23, 1933. R. H, MCELROY E1- AL MULLER 1930 18 Sheets-Sheet l2 Filed July 23 May 23, 1933 R. H. MCELROY Er AL 1,910,028

MULLER Filed July 23, 1930 18 sheets-sheet 13 III III IUI Q Z I I I I I I I l I IHIHIHI FIG. 2G

[N VENT ORS ROY H. MELEOY Pnaz. A. MEE//A/v.

ATTORNEYS May 23, 1933. R. H. MCELROY Er AL 1,910,028

MULLER Filed July 23, 1930 18 Sheets-Sheet 14 /N VENTO/5' ,Por H. MsELRoY PAUL A. MEEHAAL A TTU/(NE YS May 23,1933. R. H. MCELRY ET AL MULLER Filed July 25, 1930 18 Sheets-Sheet l5 ANQ miv) n N\ n )NQ .QQ @El wml .E MI @Xml Nmml May 23, 1933. R. H. MQELROY Er AL MULLER Filed July 23, 1930 18 SheelZS-Sheet 16 [N VEN T ORS RQY Il. MSELROY PHI/L H A TTORNEKS" MULLER Filed Julyv 23, 1930 18 Sheets-Sheeti 17 l I l MW .0E

uw. m 026 E TL# N Nef R WEE w Nw. T

May 23, 1933. R. H. Mci-:LROY n AL MULLER Filed July 23, 1930 18 Sheets-Sheet 18 IN VENTORS Por H. MSE/.Rar PHI/4 A. NEE/IHN.

IA TTORNE Y:

Patented May 23, 1933 UNITED STATES PATENT orf-'Ica BOY H. ICELBY lAND PAUL A. HEEEAN, OF DAYTON, 031.11l ABSIGNOBS, BY mi ASSIGNMENTS, T HERBERT 8. SIMPSON, 0F EVANSTON, ILLINOIS MULLER Our invention relates to mullers. It is the object of our invention to provide a muller with independent driving heads for the mullers and for the Scrapers with independent adjustments, and independently removable as units from acommon drlvlng shaft.

It is a further object to provide a muller with a self contained adjustment that is entirely independent of and separate from its drivmg head, such adjustment b eing made preferably in the line of the maJor axls of the muller arm; and it is our object to provide a counterbalanced muller adjustment.

It is a further object to provide a muller pan with a special arrangement of the bottom or wear plates removable in sectlons accordin to the degree of wear upon such plates.

t is another object to provide a muller pan which has a heavy supporting guard ring and a lighter side wall.

It is a further object to provide a muller 13 with a resilient tire or mulling surface; and a muller in which the mullers are eccentrical` ly disposed with respect to the driving axis about which they rotate bodily in order to give a kneading effect in the mulling.

It is a further object to provide a selfcleaning, dust-proof, lubricated bearing support for the main driving shaft in conjunction with a one-piece pan bottom and bearing support; and to provide in connection therewith means of maintaining a reservoir of lubricant at a predetermined level around the main bearing of the shaft.

It is another object to provide a special form of dust-proof, adjustable bearing for the muller arm pivot shaft.

It is a further object to provide a novel form of bearing which is self-cleaning for sand and like material for the muller on the end of the muller shaft.

Referring to the drawings:

Figure 1 is a side elevation of the muller;

Figure 2 is a top plan view thereof;

Figure 3 is a section on the line 3 3 of Figure 2;

Figure 4 is a section on the line 4-4 of Figure 2; v 5:0 Figure 5 is an enlarged section throu'gh half of the main driving shaft, its bearin supports and the one-piece, pan bottom and bearing container;

Figure 5A is an enlar ed sectional view through the lower end of tie depending hub; Figure 6 is a top plan view of the pan;

Figure 7 lis a section on the line 7--7 of Figure 6 without the wear plates in the pan; Figure 8 is a section on the line 8-8 of Figure 6 with the wear plates in the pan;

igure 9 is a bottom plan view of the pan; Figure 10 is an end elevation ofthe bearing support and foundation for the pan;

Figure 10A is a section on` the line 10A-'- 10A of Figure 10; d Figure 11 is a top plan view of the typical oor;

Figure 12 is a side elevation thereof; Figure 13 is a side elevation of the bottom yoke;

Figure 13A is an end elevation of Figure Figure 14 is a'section on the line 14-14 of Figure 13; v

Figure 15 is an end elevation of Figure 14;

Figure 16 is a top plan view of a muller rocker arm;

Figure 17 is a side elevation thereof;

Figure 18 is a section on the line 18-18 of Figure 2;

Figure 18A is a side elevation of the pivot shaft;

Figure 19 is a section on the line ,19-19 of Figure 18A;

Figure 20 is asection through the end of the muller shaft, a portion of the muller and the bearing support of the muller on the muller arm showing the axle support in full lines;

Figure 21 is a section through the muller showing the mounting of its tire on the line 21-21 of Figure 22;

Figure 22 is a side elevation of the muller;

Figure 23 is a top plan view of the top driving head which carries the Scrapers;

Figure 24 is a side elevation thereof;

Figure 25 is a detail front elevation of the scraper support;

Figure 26 is a side elevation thereof;

Figure 27 is a plan view thereof;

Figure 28 is a top plan view of one of the scrapers;

Figure 29 is a side elevation thereof; Figure 30 is an end elevation thereof; l igure 31 is a top plan-view of the scraper o e; y Figure-32 is a side elevation thereof from the lower side of Figure 31;

y Figure 33 is a side elevation from the top 1 side of Figure 31; p j

Figure 34 is an elevation of one of the scra r arms;

-Figure 35 is a side elevation thereof;

Figure 36 is an elevation of another one of l the scraper arms;

Figure 37 is a side elevation thereof; Figure 38 is an elevation of the outside scra er;

Figure 39 is a plan view thereof; 2 Figure 40 is a section on the line 40-40 of Fi re 39;

igure 41 is a section on the line 41-41 of Figure 2; igure 42 lis a side elevation of the pan 25 showing the arrangement of the door operating` mechanism igure 43 is a section throu h the muller taken vertically to show a mo ified form of the muller adjusting mechanism;

n Figure 44 is a section through a steel tired muller on line 44-44 of Figure 45; and

Figure 45 is an elevation of a steel tired muller; A

Figure 46 is a detail of the attachment of a scraper to a supporting arm.

Referring to the drawings in detail, 1 indicates the foundation piers upon which there is erected the supporting angle' iron framework for the muller pan. This frame Work is shown in some detail in Figure 1 and in Figure 10. This frame is composed of a column 2 which is H shape in section. Within the spaces 3 formed by the end members 4 of this column are angle iron braces at the top and bottom designated 5. On the outside there is an angle iron brace 6 at the top and at the bottom. The column 2 and the plate 6 are mounted upon a bottom plate 7 and the column structure carries at its top a top plate 8.

Between the columns at the bottom thereof on either side of the structure is a horizontal spacing column designated 9 having attaching reenforcing plates 10 and an intermedi,

ate spacing plate 11 for supporting the bearing block 12 that carries the horizontal driving shaft 13 on which is mounted a bevel pinion 14. This pinion 14 meshes with a horizontally disposed bevel gear 15 that is fastened upon the lower end of the main driving shaft 16.

Driving shaft and support The support of the shaft is shown in detail o5 of Figure 5. This shaft A*16 is provided with a ta red portion 17 at its bottom which expan s outwardly and upwardly into the next succeedin c lindrical portion 18 the lower end of w ic as well as the rtion 17 are spaced by the space 19 from t e side wall 20 of a bottom closure late 21 that is attached by the bolts 22 to t e underside of the depending hub 23 that is formed integrally with the pan bottom 24 and the upwardly extending bearing support 25, sometimes designated a turret.

This bottom closure plate 21 is formed with a recess 26 for receiving the lower 1ubricating seal and dust-excluding seal consisting of washers 27, 28 and 29 as well as the base 30 for the reservoir ring 31.

These washers of leather. 27, 28 and 29, are held in metallic cages 32 and are pressed against the shaft 16 by the helical springs 33. The washers 27 and 28 are bent upwardlv to resist the outward movement of the lubricant and the washer 29 is bent outwardlv to resist the inward movement of the dust and sand through the self-cleaning space 19 which is provided between the surfaces 17, 18 and 20 to permit of foreign material, which may enter` freely dropping out with# out injuring the shaft 16.

The reservoir ring member 30 has a paper washer 34 superimposed between it andthe shoulder 35 of the hub 23. The reservoir ring 31 extends upwardlv to the point 36 above the bottom 37 of the lubricant reservoir formed bv the bottom 37 and side walls 38 of the bearing receiving chamber 39. 36 being located at the point above 37. a sufficient quantity of lubricant is always stored around the tapered roller bearing 40 which supports the shaft 16 through engagement of the shaft 41 with that plate which is the lower side of the collar portion 42 on the shaft. the upper side of which supports a tapered bearing 43 between the shaft 16 and the side wall 38 of the chamber 39. The top side bearing is engaged by a spacer sleeve 44 which adiacent its top extends inwardly into the collar 45 with a plurality 4of horizontally disposed, spaced corrugations 46 which restrict the movement of lubricant bv reason of their close association with the shaft 16 and to which they have a slight clearance.

Above the spacing sleeve 44 resting upon its upper end 47 is a second tapered roller bearing 48 aligning the sha-ft laterally. On this bearing rests the adjusting nut 49 threaded at 50 on the upper end of the shaft 16 This adjusting'nut is provided with a washer 51 and a lock nut 52 also threaded on the shaft to maintain the adjustment of the nut 49.

The top of the bearing support 25 supports the bolts 53 which clamp the dust collar 54 in 

